baber/WOPTO huggingface dataset:
Patent GB-106303-A (GB)
Title: Improvements in or relating to Feed Water Heating and Purifying Apparatus for Locomotive and other Boilers.
Inventor: GRESLEY HERBERT NIGEL
IPC: F22D1/42
Filed: 1916-05-12
Abstract: 106,303. Gresley, H. N. May 12, 1916. Feed-water, heating.-In a locomotive or like boiler, the feed-water is delivered through a pipe 7 into a chamber 4 mounted on the boiler barrel, and is heated by boiler steam led into the chamber through a perforated pipe 10. A dished plate 13 for spreading or spraying the water is mounted on the top of the pipe 10. The heated water flows into the boiler through pipes 15 projecting into the vessel and having hoods 16 over their ends to prevent the incoming water from passing directly into the boiler. The water may flow into trays 17 in the boiler steam space. Sediment collecting in the chamber is blown off through pipes 20A. The chamber may be enclosed by an extension 23 of the steam dome casing. Superposed trays or plates may be fitted in the chamber around the steam pipe to compel the water to flow backwards and forwards in thin layers in contact with the steam.
Patent GB-556099-A (GB)
Title: Isomerization and alkylation of hydrocarbons
IPC: C07C5/27
Filed: 1942-05-20
Abstract: 556,099. Isomerzing hydrocarbons. SHELL DEVELOPMENT CO. May 20, 1942, No. 6853. Convention date, June 30, 1941. Drawings to Specification. [Class 2 (iii)] Saturated hydrocarbons are isomerized, e.g. to isobutane, isopentane, and isohexane, by passing the vapours with a hydrogen halide promoter through one or more isomerization zones containing a Friedel-Crafts type catalyst on a support, such as adsorptive aluminas, activated aluminas, magnesia, or clay, a decreasing gradient of hydrogen halide promoter concentration and an increasing gradient of space velocity being maintained in the direction of flow by introducing additional portions of the hydrocarbon to be isomerized into the stream of the reaction mixture at a number of points along its length. Any desired temperature condition may be established in any portion of the catalyst by appropriate heating or cooling of the different portions of the feed.
Patent GB-308879-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J17/04
Filed: 1928-03-05
Abstract: 308,879. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). March 5, 1928. Vacuum tubes.-In a discharge tube for rectifying polyphase currents and having an incandescent cathode and at least three anodes, all the electrodes are mounted on two stems or pinches. The cathode 7 and two anodes 8 may be mounted on one stem 2, as shown, while a third anode 8 is mounted on a stem 4. Other constructions are described wherein the cathode and one anode are mounted on one stem and two anodes on another stem (Fig. 1, not shown), and wherein the cathode is mounted alone on one stem and three anodes on the second stem. To increase the back-ignition voltage the anodes are surrounded by hoods 9 having constrictions 10. These hoods may be of insulating material, or of conducting material which is connected through condensers 14 to the anodes. The cathode preferably consists of a wide helix of tungsten wire upon which an oxide-coated nickel wire has been wound, or tungsten, thorium, or molybdenum-thorium cathodes may be used. The anode supporting wires may be enclosed in insulating cylinders.
Patent GB-1255574-A (GB)
Title: Method for preparing polyurethane solutions
IPC: C08G18/00
Filed: 1970-02-13
Abstract: 1,255,574. Polyurethane solutions. ASAHI KASEI KOGYO K.K. 13 Feb., 1970 [13 Feb., 1969], No. 6957/70. Heading C3R. Polyurethane solutions are prepared by reacting at room temperature a solution of a polyurethane prepolymer having terminal isocyanate groups with a difunctional chainextending agent having hydrogen atoms capable of reacting with the isocyanate groups together with from 0.5 to 10 mole per cent (based on the chain-extending agent) of an N,N-dialkylalkylene diamine, and subsequently ageing the reaction mixture at a temperature of at least 70‹ C. for at least 5 hours. The prepolymer is preferably based on a linear polyether, polyester, polylactone or polyetherester and methylenebis(4-phenyl isocyanate) and may be prepared in an organic solvent medium or subsequently dissolved in such a solvent prior to chain extension. Suitable chain-extending agents are diamines, glycols, water, hydrazine and dibasic acids. The subsequent ageing treatment produces a reduction in the viscosity to a constant level. Uses-With or without the further addition of pigments (e.g. titanium dioxide) stabilizers and dyestuffs in the preparation of fibres, films and elastomeric shaped articles.
Patent GB-717831-A (GB)
Title: A method of making a vehicle wheel rim
Inventor: WHALE GEORGE HENRY
IPC: B21D53/30
Filed: 1951-03-27
Abstract: 717,831. Vehicle wheels. DUNLOP RUBBER CO., Ltd. Feb. 13, 1952 [March 27, 1951], No. 7019/51. Class 144(2) [Also in Group XXII] An Endrick type rim of the form shown in Fig. 6 is made.by. assembling a hoop 2, rolled to provide radially outward projections I at each side of the median plane and preferably lipped edges 9, over and in contact with a hoop 1 of greater width, rolled to provide radially inward projections 12 registering with the prdjections 11 to form annular cavities 13, rolling the assembled hoops, preferably after welding the hoops at the regions 8 at the outer sides of the cavities 13, first to the section shown in Fig. 4 and then to that shown in Fig. 5 and finally turning down the upstanding edges 4 to give the annular-tube forms 6 against which the lipped edges 9 abut interiorly and which form the tyre-retaining flanges. The hoop 1 forms the outer casting of the wheel rim and is of stainless steel while the hoop 2 is a liner of mild steel providing the bead seatings 7 and central depression 14.
Patent GB-887839-A (GB)
Title: Improvements in or relating to stapling appliances
Inventor: NIELD GEOFFREY CHARLES
IPC: B25C5/11
Filed: 1959-03-02
Abstract: 887,839. Stapling machines. GRYMAK Ltd. March 2, 1960 [March 2, 1959], No. 7139/59. Class 89(3) An attachment for a stapling machine comprises a frame 6, 7 slidable on the ejector nozzle 1 and magazine 2 of the machine, and abutting with a cross-member 8 the operating plunger 5 of the staple-ejecting mechanism, thus replacing the normal trigger. A nose 10 projects from a crossmember 9 of the frame in front of the end of nozzle 1, and the frame is supported by a bar 12 pivoted to the magazine. In use, nose 10 is pressed against the work to actuate plunger 5 and the frame is subsequently restored by a spring 11.
Patent GB-152982-A (GB)
Title: Improvements in or relating to door locks
IPC: E05B63/20
Filed: 1920-03-09
Abstract: 152,982. Husny, K. Oct. 22, 1919, [Convention date]. Night-latches and like spring locks.-A door lock has a latch bolt and a lock bolt, the lock bolt being shot only when the latch bolt is operated without using the handle, as by slamming. The handle can turn a hub 3, which causes the spring- operated arm 8 to press the latch bolt 1 to the left, for opening the door. When the handle is turned back, the latch 'bolt is pressed into the recess 21 of the door jamb by the spring 6. If the latch bolt is retracted by slamming the door, the shoulder 16 slides off the projection 15 of the arm 8, which is then pulled to the right by the spring 10, causing the shoulder 13 to press down the arm 12 on the pivoted pawl 5, releasing the end of the bell-crank lever 4, the other end of which engages the tongue 11 of the lock bolt, and allowing this lever to tilt and the lock bolt 2 to shoot home. This position is shown in Fig. 4. To rehouse the lock-bolt in the lock casing, the handle is turned to the left, when the projection 17 on the hub 3 presses down the lever 4, withdrawing the lock-bolt, and the spring 18 presses back the pawl so that its shoulder 14 re-engages the end of the lever 4, the latch bolt being shot when the handle is released, by the springs 10 and 6. The lock-bolt may be held in its locking position by using any suitable tumbler mechanism. Striking plates.-A striking-plate is used in conjunction with the lock, in which a slide 20, Fig. 2, is moved down to leave open a recess 21 for the latch bolt or is raised to leave a recess below it for the lock bolt.
Patent GB-307358-A (GB)
Title: Improvements in electric remote control systems
IPC: H02J13/00
Filed: 1928-07-06
Abstract: 307,358. Associated Telephone &. Telegraph Co., (Assignees of Nelson, M. L.). Aug. 3, 1927, [Convention date]. Divided on 294,980. Drawings to Specification. Selective distant-control systems; tell-tale apparatus.-Relates to an electric distant-control system wherein apparatus located at a plurality of substations may be controlled and supervised from a central station over a pair of line wires. Selection and control of apparatus at any particular substation is effected by transmitting series of impulse codes, and the selection is checked and the operation is supervised by high or low buzzer signals operating a telephone receiver at the control station. The system is identical with that described in Specification 294,980 but the claims relate to the means whereby after selection a final impulse is transmitted to effect the operation of the selected unit through the intermediary of a stepping switch which determines the time of application of current to ensure -reliable operation of the unit.
Patent GB-251401-A (GB)
Title: Improvements in spring mattresses
IPC: A47C23/145
Filed: 1925-03-17
Abstract: 251,401. Mortimer, H. G., and Mullins, W. March 17, 1925. Mattresses.-A mattress has a surface of woven rattan cane c, d reinforced at the sides by stout longitudinal canes b and having on its underside stretchers e, also of stout cane. The surface is attached to wooden end bars, one of which is adjustable in known manner.
Patent GB-731743-A (GB)
Title: Process of preparing carbonyl iron powders of improved high frequency characteristics
IPC: H01F1/24
Filed: 1953-03-16
Abstract: The electromagnetic properties of carbonyl iron powder are improved by coating the powder which has a carbon content of 0.1 to 1.2 per cent with either an iron phosphate, alkali metal tetrasilicate, or a silicone resin and heating the coated powder to a temperature of 450-600 DEG  C. until the carbon content of the powder is less than 0.1 per cent.  The coating substance, in amount 0.1 to 0.5 per cent by weight of the powder, may be waterglass, potassium or lithium tetrasilicate, methyl silicone resin, dimethyl, diethyl, dipropyl or dibutyl chloro silanes, polymers of methyl silicone triol and phenyl silicone triol, trimethyl, triethyl, tripropyl or tributyl chlorosilanes, dissolved in a lower alkyl chlorinated hydrocarbon, e.g. chloroform, carbon tetrachloride, ethylene chloride, 1,1-dichloroethane, or 1,1,1-trichloroethane.  The coated powder is then dried and reduced in hydrogen of at least 99 per cent purity. The powders may be treated with phosphoric acid to form iron phosphate before reduction.  The finished reduced powders are stated to be insulated and suitable for manufacturing into high-frequency cores.  U.S.A. Specifications 1,759,659, 2,375,998, 2,381,366, 2,383,817 and 2,508,705 are referred to.
Patent GB-786863-A (GB)
Title: Improvements relating to safety devices for power presses
Inventor: JESSHOPE ARTHUR PORTER
IPC: F16P3/24
Filed: 1955-03-12
Abstract: 786,863. Machinery safety devices; locking rods. JESSHOPE, Ltd. March 5, 1956 [March 12, 1955], No. 7302/55. Classes 80 (3) and 80 (4). In a two-handed safety device for a power press, a longitudinally-movable control rod, actuated by one hand, is formed in two telescopic parts a, b which are coupled together, to render the control rod operative, only when a Bowden cable e, actuated by the other hand, has been moved to raise a gravity loaded member c slidable on the tube b, raising of the member c forcing two or more conicalfaced segments c' into engagement with a groove in the rod a. The member c is connected to the cable e by a forked member d pivoted at d<SP>1</SP> to the tube b. The rod a has a cylindrical boss a<SP>1</SP> and a conical formation a2 engageable with corresponding parts of the tube b. The segments c<SP>1</SP> may be urged outwardly by spring or other means.
Patent GB-198463-A (GB)
Title: A new and improved composition for fire-bricks
IPC: C04B33/02
Filed: 1922-03-13
Abstract: 198,463. Meese, W. March 13, 1922. Refractory substances containing sandstone and clay.-Fire-bricks are composed of a mixture of 1 ton of white or brown sandstone and 7¢ cwts. of red clay. According to the Provisional Specification the proportions may be 2 parts of sandstone to 1 part of clay.
Patent GB-867542-A (GB)
Title: Improvements in micrometer screw measuring means
IPC: G01B3/18
Filed: 1957-03-06
Abstract: 867,542. Linear-dimension gauges; vernier equivalents. A.E.I. - JOHN THOMPSON NUCLEAR ENERGY CO. Ltd., SHEPHERD, G. H., and STAIT, D. P. March 6, 1958 [March 6, 1957], No. 7423/57. Class 106 (2). [Also in Group XXXV] A micrometer screw gauge incorporates a magnetic circuit, the reluctance of which changes as part of the micrometer is rotated, together with means for counting the changes in reluctance. The spindle 1 of the micrometer carries a toothed wheel 4 and an annular element 6 embraced by a coil 7. An element 8 carrying fingers 10 is separated from the element 6 by an air gap 5 in which the teeth of wheel 4 rotate. An alternating current of some 4000 cycles/sec. is applied to the coil 7 and causes a flux to circulate in the magnetic circuit 6, 8, 10. If one of the teeth of wheel 4 is coincident with a finger 10, a maximum flux will occur in that finger and will induce a voltage in a coil 13 mounted thereon. The number of pulses is counted by a known counter and a vernier indication is given by the relative magnitude of the voltages induced in the other coils 13.
Patent GB-374165-A (GB)
Title: Convertible bed
IPC: A47C17/54
Filed: 1931-03-11
Abstract: 374,165. Convertible bedsteads. BENNIE, D. A., Petershill Road, Glasgow. March 11, 1931, No. 7477. [Class 52 (ii).] A bed frame 1 is hinged to the rear top edge of a chest 4 so that it can be tilted to stand vertically behind the chest when out of use ; also hinged to the bed frame is a table or bureau structure 2 upon which, and upon the chest 4, the bed frame rests when in use. The front of the structure above the bureau 2 may have glazed or panelled doors and can be used as a wardrobe or to store bed clothes. Counterweights and dashpot or damper mechanism may be embodied to control the bed frame during movement and a folding head 11 with a linkage for automatic operation may be provided. The mattress surface may lie within the structure in which case drop sides 101 are used, or may be so mounted as to be raised when in use by means operated by movement of the bed or in the way set forth in Specification 309,647, [Class 52 (ii), Furniture for sitting &c. upon].
Patent GB-960063-A (GB)
Title: Improvements in or relating to liquid pumps
IPC: F16N13/02
Filed: 1961-03-01
Abstract: 960,063. Reciprocating pumps. HOUDAILLE INDUSTRIES Inc. March 1, 1961 [Sept. 29, 1960], No. 7508/61. Heading F1A. A liquid pump, comprising a valve body having an inlet 11 and an outlet 12 and a sight glass chamber 46 communicating therewith, has means supplying liquid to the chamber 42 and means for supplying liquid under pressure to a discharge port 12. A pressurizing chamber 13 contains a cam operated plunger 14 which on its downward stroke uncovers the inlet passage to draw in liquid. The liquid is forced out past a ball valve 19 and the movement of the ball is limited by fingers 18 formed in the ball seat member 15. The valve spring 25 seats on a screw 20 and a second ball valve 23 is positioned in the outlet 12. Liquid is supplied from a reservoir 37 and is led to a passageway 33 in the valve body 10, to flow through a drip tube 40 into the sight glass chamber 46. The gravity feed of liquid will fill the chamber 46 until the air pressure therein is sufficient to stop the flow of liquid. A vent screw in the top of the chamber 46 allows for regulation of the air volume within the chamber. In alternative embodiments the reservoir 37 may be connected directly to the top of the chamber 46 and no drip tube is provided, or a pump may be used instead of a gravity feed.
Patent GB-1533276-A (GB)
Title: Seats back rests mattresses and the like
IPC: B60N2/00
Filed: 1976-02-26
Abstract: 1533276 Upholstery W ISMER 26 Feb 1976 [8 March 1975] 07552/76 Heading A4M A seat, backrest, mattress or like upholstered article comprises a body 5 of foam plastics or like material with vent holes 13, 14 extending through its thickness, an inlay of strip spring steel 10, 11 incorporated in one surface of the body, and an overlying cover layer 3, the inlay comprising intersecting spring steel strips 10, 11 and some of the vent holes 13 being disposed directly below the intersections. A further perforated layer 6 and/or a perforated seat frame may be included. The strips 10, 11 may be inter-connected by disks 12 which have a piston-like action on the air columns in the vent holes 13.
Patent GB-253229-A (GB)
Title: Improvements in the connection of tubes to plates, pipes and the like
IPC: B23B51/08
Filed: 1925-03-20
Abstract: 253,229. Bromford Ltd., and Reimann, J. March 20, 1925. Drilling-machines .-A tube 23 is connected to a plate, pipe, &c., 2, which is accessible from one side only, by screwing it into a neck 21, Fig. 6, formed thereon by drilling a hole in the pipe &c., of smaller diameter than the tube, inserting an expansible drift, expanding the latter and finally withdrawing it through the hole with or without simultaneous rotation. A die 16, Fig. 1, held in place by a clamp 20, is preferably employed around the edge of the hole, while an extension 14 of the die forms a guide for the drill 10 and the drift 5 which is made expansible by providing it with longitudinal slits 11. In operation, when the hole has been drilled, the drift is inserted therethrough after which the drill is withdrawn sufficiently to expand the end of the drift 5, Fig. 3. so that when the drift 5 is withdrawn through the hole it will expand it and bend its edge outwardly to form the neck 21. The inner end of the threaded portion of the drift 5 may constitute a tap so that by screwing down the drift after forming the neck it can cut a thread therein. In order to hold securely the tube 23 in the neck the screwed end of the tube may be caused to project within the pipe 2 and be expanded by another expansible drift, Fig. 6. The die 16 may be provided with removable liners, and the neck 2 may be externally screw-threaded. The operations can be accelerated by local heating of the metal.
Patent GB-952896-A (GB)
Title: Bedsteads
Inventor: HOSKINS HERBERT RONALD
IPC: A61G7/005
Filed: 1961-03-02
Abstract: 952,896. Bedstead adjustments. HOSKINS & SEWELL Ltd. Feb. 14, 1962 [March 2, 1961], No. 7600/61. Heading A4J. A bedstead provided with two mechanically operable jack means at its head and foot respectively, each comprising a pair of tubes 11 which may be raised or lowered on parts 10 (Fig. 5) and actuating means whereby either of the jack means or both jack means together can be operated by a common handle 26 comprises in combination a shaft 25 extending longitudinally of the bed and which may be rotated by the handle 26, a first pair of axially spaced sleeves 19, 20 freely surrounding the shaft 25 and in driving engagement with the jack means, a second pair of sleeves 27, 28 surrounding the shaft 25 between the sleeves 19, 20, the sleeves 27, 28 being non-rotatably but axially movable relative to the shaft 25, resilient means 33 acting between the sleeves 27, 28 to urge dogs 31, 32 on the sleeves 27, 28 into driving engagement with complementary slots 19a, 20a in the sleeves 19, 20 and actuating means 36 whereby either of the sleeves 27 or 28 can be moved axially alternately out of engagement with its adjacent sleeve 19 or 20 against the action of the resilient means 33. The resilient means 33 is housed in a body part 34 containing the flanged ends 27b, 28b of the sleeves 27, 28. The body part 34 has a lateral projection 35 in which an actuating rod is rotatably but non-axially movable. A cranked end of the rod 36 may be located in a plate 37 secured to a gear box 16 of a jack means to hold the body 34 in one of three alternative positions.
Patent GB-1427672-A (GB)
Title: Object positioning
IPC: H01L21/68
Filed: 1974-02-20
Abstract: 1427672 Staircase wave generators; optical position alignment WESTERN ELECTRIC CO Inc 20 Feb 1974 [1 March 1973] 7668/74 Headings H3T and H4D [Also in Division G1] In a position aligning system the object is scanned and the video signal compared with additional signals representing scanning of position markers to determine the average amount of overlap therebetween over a plurality of line scans and controlling the position of the object in accordance therewith. This arrangement reduces positioning errors due to variations in the outline of the object. As shown, Fig. 3, a beam-leaded semi-conductor chip 10a is placed on a positioning table 31 and viewed by a camera 30. The video signals are applied to a threshold detector 38 and the resulting pulses applied to AND gates 39. Marker generators 40, synchronized with the camera 30, produce signals representing rectangular position marker bars 20 to 23 which are positioned round the desired location of the image 10 of chip 10a. The position marker signals are applied to the AND gates 39 which produce outputs whenever the scanned point of the image of the chip coincides with part of one of the respective markers. These outputs gate high frequency pulses from oscillator 42 to charge storage circuits 43. As shown, Fig. 4, each storage circuit includes a capacitor 52 which is charged by the pulse trains from gate 41. A feedback circuit is provided so that each pulse increases the charge on the capacitor by an equal amount. The capacitor is discharged periodically by the vertical synchronizing pulses. The output signal comprises a staircase waveform the instantaneous height of which represents the cumulative average overlap between the chip video signal and the appropriate position marker during the frame scan. The differences between the overlaps of the chip with the left and right markers and with the top and bottom markers are determined by differential detectors 44 which control positioning drive motors 33, 34 to adjust the position of the chip. The video signal is also combined with the marker signal (preferably inverted) to provide the signal for a monitor display 37. If one lead of a chip is shorter than the others a positioning error will occur but due to the averaging effect this error will be smaller than would be produced if the alignment had been effected using only the short lead.